import (
  "fmt"
  "github.com/LayGit/antsdk/alipay"
  "github.com/LayGit/antsdk/api/trade"
)

func main() {
    client := alipay.NewDefaultAlipayClient("https://openapi.alipay.com/gateway.do", "商户AppId", "商户密钥", "支付宝公钥")
    // 创建请求
    request := &trade.AlipayTradeQueryRequest{}
    // 设置参数
    request.BizContent.OutTradeNo = "L123456"
    // 请求响应
    var response trade.AlipayTradeQueryResponse
    err := client.Execute(request, &response)
    if err != nil {
        // 错误处理
        fmt.Println(err)
    } else {
        if response.IsSuccess() {
          fmt.Println("调用成功")
        } else {
          fmt.Println("调用失败")
        }
    }
}